Solar System
Bringing you some interesting facts about our Solar System.
1. Solar System
The Solar System consists of a Sun and a system of eight planets, their moons, and other non-stellar objects. It was believed to be formed about 4.6 billion years ago from the gravitational collapse of a giant molecular cloud. The Solar System also contains a number of regions populated by smaller objects known as the asteroid belt, which lies between Mars and Jupiter, and is composed of rock and metal.

The Solar System is located within one of the outer arms of Milky Way galaxy, which contains about 200 billion stars. At the heart of the solar system is our sun. The four planets nearest it are rocky, terrestrial worlds — Mercury, Venus, Earth and Mars. After that are four gas giants — Jupiter, Saturn, Uranus and Neptune. There are now officially only eight planets in our solar system, Pluto no longer qualifies as a planet.
2. Sun
The Sun was born in a vast cloud of gas(nebulae) and dust around 5 billion years ago. Indeed, these vast nebulae are the birth places of all stars. Over a period of many millions of years, the gases and dust combined to a common center under its own gravity. It became hotter and hotter and eventually, reached a temperature of around 1 million degrees, its core ignited, causing it to begin nuclear fusion. When this happened, the Sun began producing its own light, heat, and energy.

The Romans called the sun Sol, which in English means sun. In ancient Greece, the sun was called Helios.Thus our system of planets is called the Solar System.
3. Mercury
The closest of the planets to the Sun and somewhat near to Earth, it is visible to observers on Earth in the late evening or early morning sky. This planet is also reffered as morning star and evening star for the reason. This is because Mercury shines brightly in the early morning just before the sun rises and is also visible for a brief period of time just after the Sun sets.

Mercury has less gravity so if you moved to Mercury you would not weigh as much as you did on Earth, because Mercury is smaller. Assuming you weigh 70 lbs (32 kg) on Earth, you would weigh only about 27 lbs (12 kg) on Mercury.
4. Venus
Venus is a similar planet to Earth like the Earth, Venus too has an atmosphere. However, Venus' atmosphere is far thicker than that of the Earth, thus making it difficult for modern science to penetrate. Scientists have now been able to peek through the thick clouds and get a few glimpses of the surface using special instruments. Scientists have in recent years unlocked many of the secrets. Though the scientific probes lasted a few hours able to take several pictures and send them back to earth for scientists to study.

Venus is named after the Roman goddess of love and beauty, Aphrodite. Because Earth and Venus are similar planets you would weigh almost exactly the same on either planet. Assuming you weighed 70 lbs (32 kg) on Earth, you would weigh 63 lbs (29 kg ) on Venus.
5. Earth
Earth is an oasis of life in an this desolate universe. The Earth's temperature, weather, atmosphere and many other factors are just right to keep us alive. The Earth is the biggest of all the terrestrial planets. A terrestrial planet is a dense planet found in the inner Solar System.

Scientists use the Earth to study all the other planets. Since no human has been able to visit another planet, we use what we know about the Earth, and try to guess what the other planets must be like. This study is called Comparative Planetology.

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    Did you Know :

    Nobel Prize : Chemistry
    Year : 1984
    Name : bruce merrifield
    Country : united states.
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